#!/usr/bin/python
# -*- coding: UTF-8 -*-
# 题目：学习使用按位或 | 。
# 程序分析：0|0=0; 0|1=1; 1|0=1; 1|1=1

if __name__ == '__main__':
    a = 077
    b = a | 3
    print 'a | b is %d' % b
    b |= 7
    print 'a | b is %d' % b